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公开(公告)号:US11954505B2
公开(公告)日:2024-04-09
申请号:US17886240
申请日:2022-08-11
Applicant: Seagate Technology LLC
Inventor: Hemant Vitthalrao Mane , Jason Matthew Feist , Praveen Viraraghavan , Robert W. Dixon , Marc Timothy Jones , Steven Williams
CPC classification number: G06F9/4451 , G06F9/4881
Abstract: A data storage system may connect a host to a device and a hardware module that are utilized to satisfy at least one host-generated data access request to the device. A portion of the device is set as dormant by the hardware module prior to identifying an origin of the device with the hardware module during the satisfaction of the at least one host-generated data access request. In response to the identified origin, the previously dormant portion of the device is activated and subsequently utilized to execute a task assigned by the hardware module.
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公开(公告)号:US11934673B2
公开(公告)日:2024-03-19
申请号:US17885828
申请日:2022-08-11
Applicant: Seagate Technology LLC
Inventor: Abhay T. Kataria , Praveen Viraraghavan , Mark A. Gaertner
IPC: G06F3/06
CPC classification number: G06F3/0635 , G06F3/0604 , G06F3/0634 , G06F3/0673
Abstract: A data storage device includes at least one data storage medium. The data storage device also includes a workload rating associated with data access operations carried out on the at least one data storage medium. The data storage device further includes a controller configured to enable performance of the data access operations, and change a rate of consumption of the workload rating by internal device management operations carried out in the data storage device in response to a change in a workload consumed by host commands serviced by the data storage device.
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公开(公告)号:US11922055B2
公开(公告)日:2024-03-05
申请号:US17730345
申请日:2022-04-27
Applicant: Seagate Technology LLC
Inventor: Jon D. Trantham , Praveen Viraraghavan , John W. Dykes , Ian J. Gilbert , Sangita Shreedharan Kalarickal , Matthew J. Totin , Mohamad El-Batal , Darshana H. Mehta
CPC classification number: G06F3/0655 , G06F3/0604 , G06F3/0679 , G11C11/22
Abstract: Apparatus and method for managing data in a processing system, such as but not limited to a data storage device such as a solid-state drive (SSD). A ferroelectric stack register memory has a first arrangement of ferroelectric memory cells (FMEs) of a first construction and a second arrangement of FMEs of a different, second construction arranged to provide respective cache lines for use by a controller, such as a programmable processor. A pointer mechanism is configured to provide pointers to point to each of the respective cache lines based on a time sequence of operation of the processor. Data sets can be migrated to the different arrangements by the controller as required based on the different operational characteristics of the respective FME constructions. The FMEs may be non-volatile and read-destructive. Refresh circuitry can be selectively enacted under different operational modes.
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公开(公告)号:US11874801B2
公开(公告)日:2024-01-16
申请号:US17670633
申请日:2022-02-14
Applicant: Seagate Technology LLC
Inventor: John Michael Bent , Praveen Viraraghavan , Tim Shaffer
IPC: G06F16/17 , G06F16/174
CPC classification number: G06F16/1748
Abstract: A method includes receiving a piece of data at an upper-layer server of a multi-tiered storage system comprising the upper-layer server and a block server, and determining a signature for the piece of data. A first bloom filter stored on the upper-layer server is a copy of a second bloom filter stored on the block server. The first bloom filter is checked for the signature. When a match is found in the first bloom filter, the piece of data is sent for storage at the block server, and it is verified at the block server whether a match is present for the piece of data. When a match is present, the piece of data is deduplicated. When a match is not present, the piece of data is stored. When a match is not found in the first bloom filter, the piece of data is stored in the block server.
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公开(公告)号:US20230418506A1
公开(公告)日:2023-12-28
申请号:US17847509
申请日:2022-06-23
Applicant: Seagate Technology LLC
Inventor: Hemant Vitthalrao Mane , Jason Matthew Feist , Praveen Viraraghavan , Robert W. Dixon , Marc Timothy Jones , Steven Williams
IPC: G06F3/06
CPC classification number: G06F3/0655 , G06F3/067 , G06F3/0604
Abstract: A distributed data storage system can be configured with a host connected to a first device and an initialization module that performs a default initialization procedure on the first device in response to detecting the first device has an unknown manufacturing origin. Conducting the default initialization procedure may allow the first device to service data access requests from the host. In response to the connection of a second device to the host and initialization module, a manufacturing origin of the second device is identified with the initialization module before the initialization module customizes the default initialization procedure to a custom procedure that is executed to allow the second device to satisfy a background operation prescribed by the initialization module.
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公开(公告)号:US20220405208A1
公开(公告)日:2022-12-22
申请号:US17844141
申请日:2022-06-20
Applicant: Seagate Technology LLC
Inventor: Jon D. Trantham , Praveen Viraraghavan , John W. Dykes , Ian J. Gilbert , Sangita Shreedharan Kalarickal , Matthew J. Totin , Mohamad El-Batal , Darshana H. Mehta
IPC: G06F12/0891
Abstract: A data storage system can employ a read destructive memory configured to fill a first cache with a first data set from a data repository prior to populating a second cache with a second data set describing the first data set with the first and second cache each having non-volatile ferroelectric memory cells. An entirety of the first cache may be read in response to a cache hit in the second cache with the cache hit responsive to a data read command from a host and with the first cache being read without a refresh operation restoring the data of the first cache.
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公开(公告)号:US20240053993A1
公开(公告)日:2024-02-15
申请号:US17886240
申请日:2022-08-11
Applicant: Seagate Technology LLC
Inventor: Hemant Vitthalrao Mane , Jason Matthew Feist , Praveen Viraraghavan , Robert W. Dixon , Marc Timothy Jones , Steven Williams
CPC classification number: G06F9/4451 , G06F9/4881
Abstract: A data storage system may connect a host to a device and a hardware module that are utilized to satisfy at least one host-generated data access request to the device. A portion of the device is set as dormant by the hardware module prior to identifying an origin of the device with the hardware module during the satisfaction of the at least one host-generated data access request. In response to the identified origin, the previously dormant portion of the device is activated and subsequently utilized to execute a task assigned by the hardware module.
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公开(公告)号:US11868621B2
公开(公告)日:2024-01-09
申请号:US17844174
申请日:2022-06-20
Applicant: Seagate Technology LLC
Inventor: Jon D. Trantham , Praveen Viraraghavan , John W. Dykes , Ian J. Gilbert , Sangita Shreedharan Kalarickal , Matthew J. Totin , Mohamad El-Batal , Darshana H. Mehta
CPC classification number: G06F3/0616 , G06F3/0653 , G06F3/0679 , G11C29/08
Abstract: A data storage system can employ a read destructive memory configured with multiple levels. A non-volatile memory unit can be programmed with a first logical state in response to a first write voltage of a first hysteresis loop by a write controller prior to being programmed to a second logical state in response to a second write voltage of the first hysteresis loop, as directed by the write controller. The first and second logical states may be present concurrently in the non-volatile memory unit and subsequently read concurrently as the first logical state and the second logical state.
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公开(公告)号:US20230418507A1
公开(公告)日:2023-12-28
申请号:US17847704
申请日:2022-06-23
Applicant: Seagate Technology LLC
Inventor: Hemant Vitthalrao Mane , Jason Matthew Feist , Praveen Viraraghavan , Robert W. Dixon , Marc Timothy Jones , Steven Williams
IPC: G06F3/06
CPC classification number: G06F3/0655 , G06F3/067 , G06F3/0604
Abstract: A distributed data storage system may connect a host to a device and a dedication module. The dedication module can identify a manufacturing origin of the device before dedicating a type of host-generated data access request to the device. The type of host-generated data access request is chosen by the dedication module in response to an operating capability correlated to the device by the dedication module based on the identified manufacturing origin. At least one host-generated request of the dedicated type is then completed with the device.
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公开(公告)号:US20220350523A1
公开(公告)日:2022-11-03
申请号:US17730345
申请日:2022-04-27
Applicant: Seagate Technology LLC
Inventor: Jon D. Trantham , Praveen Viraraghavan , John W. Dykes , Ian J. Gilbert , Sangita Shreedharan Kalarickal , Matthew J. Totin , Mohamad El-Batal , Darshana H. Mehta
IPC: G06F3/06
Abstract: Apparatus and method for managing data in a processing system, such as but not limited to a data storage device such as a solid-state drive (SSD). A ferroelectric stack register memory has a first arrangement of ferroelectric memory cells (FMEs) of a first construction and a second arrangement of FMEs of a different, second construction arranged to provide respective cache lines for use by a controller, such as a programmable processor. A pointer mechanism is configured to provide pointers to point to each of the respective cache lines based on a time sequence of operation of the processor. Data sets can be migrated to the different arrangements by the controller as required based on the different operational characteristics of the respective FME constructions. The FMEs may be non-volatile and read-destructive. Refresh circuitry can be selectively enacted under different operational modes.
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